Dahua XVR4108HS User Manual

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7 FAQ
1. DVR cannot boot up properly.
There are following possibilities:
 Input power is not correct.

Power connection is not correct.
 Power switch button is damaged.
 Program upgrade is wrong.

HDD malfunction or something wrong with HDD ribbon.
 Seagate DB35.1,DB35.2,SV35 or Maxtor 17-g has compatibility problem. Please
upgrade to the latest version to solve this problem.

Front panel error.
 Main board is damaged.
2. How to restore factory default setup even I cannot login the user interface.
There are following possibilities:
 Please use the reset button to restore factory default setup. Please shut down
the device, remove the top cover and front panel. Go to the mainboard and find
the button. Press to boot up and then remain pressing for 5 to 10
seconds. Device automatically restoring factory default setup and then reboot.
Note
Please make sure you purchased device has the reset button on the mainboard.
3. DVR often automatically shuts down or stops running.
There are following possibilities:
 Input voltage is not stable or it is too low.
 HDD malfunction or something wrong with the ribbon.

Button power is not enough.
 Front video signal is not stable.
 Working environment is too harsh, too much dust.

Hardware malfunction.
4. System cannot detect hard disk.
There are following possibilities:
 HDD is broken.
 HDD ribbon is damaged.

HDD cable connection is loose.
 Main board SATA port is broken.
5. There is no video output whether it is one-channel, multiple-channel or
all-channel output.
There are following possibilities:

Dahua XVR4108HS Specifications

General

Video Compression	H.265+/H.265/H.264+/H.264
Audio Input/Output	1/1, RCA
USB	2 USB 2.0
Power Supply	DC12V/2A
Main Processor	Embedded Processor
Operating System	Embedded LINUX
HDCVI Camera	1080p@25/30 fps, 720p@25/30 fps
AHD Camera	1080p@25/30 fps, 720p@25/30 fps
TVI Camera	1080p@25/30 fps, 720p@25/30 fps
Record Mode	Manual, Schedule (Regular, Continuous), MD (Video detection: Motion Detection, Video Loss, Tampering), Alarm, Stop
Video Output	1 HDMI, 1 VGA
Display Split	1/4/8/9
OSD	Camera title, Time, Video loss, Camera lock, Motion detection, Recording
Smart Phone	iPhone, iPad, Android
HDD	1 SATA Port, up to 6TB
Video Input	8 channels
IP Camera Input	8+2 channel, each channel up to 5MP
Recording Resolution	1080N, 720P, 960H, D1, HD1, CIF
Record Rate	Main Stream: 1080N/720P/960H/D1/HD1/BCIF/CIF/QCIF (1~25/30fps)
Bit Rate	32 Kbps–6144 Kbps per channel
Record Interval	1 ~ 60 min (default: 60 min), Pre-record: 1 ~ 30 sec, Post-record: 10 ~ 300 sec
Resolution	1920×1080, 1280×1024, 1280×720
Network Interface	RJ-45 port (10/100M)
Interoperability	ONVIF
Working Environment	-10°C to +55°C / 10% to 90% RH
Weight	0.75kg (without HDD)
Two-way Talk	Reuse audio input/output channel 1